Coltlite - LWS Overlapping

Description

Coltlite LWS natural louvred glazed ventilator, suitable for natural day to day ventilation and smoke control. Tested to and in compliance with EN 12101-2, and CE marked. For installation in the vertical only.

Detailed Description

Non thermally broken extruded aluminium (46mm thick) outer frame with frameless controllable, single glazed, overlapping glass louvres.

Dimensions / size range

From 250mm to 1600mm in width, and from 200mm to 3000mm in height as one module.

Frame

Non thermally broken, 46mm deep

Louvres

  • 8mm / 10mm / 12mm overall clear toughened, float or laminated glass with overlapping blades.

Blade Pitch

150 - 300mm (depending on overall size of complete unit) with central pivot point.

Colours/ finishes options

  • Polyester powder paint to a RAL colour, standard 75 mu
  • Anodised, standard 20 mu

Fixing options

  • Fixing to curtain walling using 20 to 40 mm non thermally broken glazing frame adaptor
  • Fixing to structural opening using either through frame or strap fixings.

Controls options

  • Lever
  • Crank handle
  • 230 volt AC motor
  • 24 volt DC motor
  • Pneumatic cylinder

Frame mounted motor (hidden behind side frame profile) positioned at:

  • Top
  • Bottom

on either side frame and with a typical operation time of 15-30 seconds.

  • Optional device to reduce the speed and force of closing louvres, to reduce the risk of finger squeezing (electric versions only).

If used as a smoke ventilator, activation is either by local thermal fuse which opens the unit at a pre-selected temperature, or by responding to an external release signal.

Performance

 
Reliability RE 1000 (10,000 cycles)
Wind load class WL 1600
Snow  load class SL 0
High temperature class B 300
Low temperature class T(00) to T(-25)
Materials resistance to fire E (to EN 13501-1)
U value 5.8
Aerodynamic coefficient Up to 0.65
Air permeability 10.04m³/hr/m² or 1.6m³/hr/m at 50Pa
Water tightness Watertight at static pressure of up to and including 100Pa

Compliance

Tested to and in compliance with EN 12101-2 and CE marked.

LWS Coltlite natural ventilation unitLWS Overlapping Coltlite ventilator specification drawing